Underwater face mask



FIG. 1 is a front-side elevational view of the underwater face mask according to the new design;

FIG. 2 is a rear-side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a right-side elevational view thereof, the left side being a mirror image thereof. 

The ornamental design of an underwater face mask, as shown and described. 